Constructor delegation from body of constructor

Question

Not sure why but seems some issue to save the new code from playground on windows 10, so pasting code into query itself:
class myString
{
public:
myString() : m_pCharName(nullptr), m_intSize(0) { cout << "null contructor called\n"; }
~myString()
{
cout << "Destructor called\n";
if (m_pCharName)
delete[] m_pCharName;
}
myString(const char* pInput)
{
if (pInput == nullptr)
myString();
else
{
m_intSize = strlen(pInput);
m_pCharName = new char[m_intSize + 1];
strcpy_s(m_pCharName, m_intSize + 1, pInput);
}
}
private:
char* m_pCharName;
int m_intSize;
};
Question is on constructor delegation.
Is below line proper?
if (pInput == nullptr)
myString();
I want to call non parametric constructor in case of input as nullptr.

Answer 1

Let me write in different words :
Why code below observes memory issue ?
https://code.sololearn.com/cYBe2NnYd4Ek/?ref=app

Answer 2

Hi community ,
Any solution on this , plz ?